Dynamics of the 16O(e, e'p) reaction at high missing energies.

We measured the cross section and response functions for the quasielastic {sup 16}O( e,E{dagger}p) reaction for missing energies 25{le}E{sub m}{le}120 MeV at missing momenta P{sub m}{le}340 MeV/c . For 25{lt}E{sub m}{lt}50 MeV and P{sub m}{approximately}60 MeV/c , the reaction is dominated by a single 1s{sub 1/2} proton knockout. At larger P{sub m} , the single-particle aspects are increasingly masked by more complicated processes. Calculations which include pion exchange currents, isobar currents, and short-range correlations account for the shape and the transversity, but for only half of the magnitude of the measured cross section.